Stoneworking-machine.



H. H. MERCER.

STONEWORKING MACHINE.

APPLICATION FILED AUG- 18, m0.

1,174,597. Patented Mar. 7,1916.

3 SHEETS-SHEET l- Milan/eases.

.[nvewtort 1%w/ gLI-mere er 3%6w4-k 0 g maiw 21 THE COLUMBIA PLANOGRAPHco., WASHINGTON, D, c.

H. H. MERCER. STONEWORKING MACHINE.

APPLICATION man AUG, 18. 1910.

1 1 74,597. Patented Mar. 7, 1916.

3 SHEETS-SHEET 2.

witnesses THE COLUMBIA PLANOGRAPH c0., WASHINGTON. n. c,

H. H. MERCER.

STONEWORKING MACHINE.

APPLICATION FILED AUG\l8,1910.

1,174,597. I Patented Ma1'.7,1916.

3 SHEETS- SHEET 3.

Fig.4. 69

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Invmtar uhltnesses I flenrgflmereer -T %Q by it??? awaw I THE COLUMBIAPLAtjOuRAPl-l co., WASHINGTON, n. c.

UNTTED STATES PATENT OFFICE.

HENRY I-I. MERCER, 0F CLAREMONT, NEW HAMPSHIRE, ASSIGNOR, BY MESNEASSIGN- MENTS, TO SULLIVAN MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS,A

CORPORATION OF MASSACHUSETTS.

STONEWORKING-MACHINE.

Specification of Letters Patent.

Patented Mar. 7, 1916.

Application filed August 18, 1910. Serial No. 577,752.

To all whom it may concern Be it known that I, HENRY H. MERCER, acitizen of the United States, and a resident of Claremont, county ofSullivan, State of New Hampshire, (whose post-office address isClaremont, New Hampshire) have invented an Improvement in Stoneworking-Machines, of which the following description, in connection with theaccompanying drawings, is a specification, like letters on the drawingsrepresenting like parts.

This invention relates to stone working machines, the purpose thereofbeing to increase the efliciency and extend the utility of suchmachines.

This invention as to many of its important features may be applied tovarious purposes and to stone working machines of widely diiferenttypes, and to machines widely different from the one herein described.For purposes of illustration, however, it is here shown as applied to astone channeling machine constructed as a track channeler useful forcutting not only the usual channel groove, but also for corner cutting,for wall cutting, and for various other purposes.

My invention will be best understood by reference to the followingdescription when taken in connection with the accompanying illustrationof one specific embodiment thereof, while its scope will be moreparticularly pointed out in the appended claims.

In the drawings: Figure 1 is a front elevation with parts of the machineremoved, showing a stone channeling machine embodying one form of myinvention; Fig. 1 is an enlarged detail of the sliding shoe and itsguides; Fig. 2 is a plan partly in section showing the channelingmachine of Fig. 1; Fig. 3 is an elevation on an enlarged scale showingthe clutch lever for the truck driving mechanism; Fig. 4 is an endelevation partly broken away showing the channeling machine of Figs. 1and 2; Fig. 5 is a sectional elevation showing details of the trunnionboX for the standard and the feed screw gearing; Fig. 6 is a rearelevation of the trunnion box; Fig. 7 is a side elevation in section onthe line 7-7 in Fig. 2 showing the speed change gearing; Fig. 8 is asection in plan on the line 8-8 in Fig. 4 showing the standard guideshoe and its connection thereto; and Fig. 9 is an elevation in sectionon the line 99 in Fig. 2 showing other parts of the change speedgearing.

Referring to the drawings and to the em bodiment of the invention theresubmitted for illustrative purposes, I have shown a stone workingmachine, herein in the form of a track channeler, supported upon a mainsupport comprising a frame work or truck 1. The latter is provided atits opposite ends with two transverse shafts or axles 2, each carryingnear its outer ends flanged truck vwheels which are adapted to run uponthe rails 4 customarily laid upon the quarry bottom to permit theadvance of the machine when cutting in the usual fashion.

The machine is provided with suitable cutting applicances and withactuating means therefor, being herein equipped for that purpose with atool or tools of the percussive type. Any suitable cutting appliancesmay be employed, but herein there is utilized a reciprocatory cuttingtool associated with a compressed-air, direct-acting engine, the lattersupplied with pressurefluid from a suitable source, not shown, andhavingthe cylinder 5 (Fig. 4:) to which is connected the piston rod 6 and thecross head 7. The latter has clamped thereto a suitable tool or toolssuch as the gang 8, the cutting ends of the latter being given areciprocatory movement toward and from the bottom of the channel grooveas the engine piston is reciprocated. The cross head 7 reciprocates inthe cross head guides 9, the latter being provided with gibs 10 whichoverlie the cross head and being rigidly connected to the cylinder 5 toform therewith an actuator frame or carrier adjustable as a unit towardor from the work.

The sliding actuator frame which includes a tool actuating engine andcross head guides, together with the supported cross head and attachedtools, is guided during its sliding movement upon a standard or intermediate support 11, which latter presents finished webs or guideways12 to receive the inner finished walls of the frame, gibs 13 beingsecured to the frame to overlie the inner edges of said webs and retainthe sliding frame thereon. The sliding actuator frame is shown removedin Fig. 1 for the sake of clearness.

The standard is supported near' its lower 7 end upon a trunnion box l t,the latter being slidably mounted upon the trunnion bar 15 secured atthe side of the truck so as to permit the cutting appliances to overhangthe side thereof. structed and other provision is so made that thestandard may be held fixed in position, either upright or oblique, andat any part of the trunnion bar, although ordinarily at one end thereof,as represented in dotted lines in Fig. 1, so that by traversing thetruck the ordinary channel groove may be cut in the open, or it may beconnected to slide back and forth with the trunnion box on the trunnionbar and cause the cutting tools to describe a path suitable for reachingin under an overhanging side wall of the quarry and cut the corner.

Referring first to the construction of the trunnion box, it will be seenthat the latter is split at 16, whereat it is provided with shims, suchas pieces of tin, so that when clamped by means of the clamping bolts 17it has a sliding fit upon the trunnion bar 15. The trunnion box carriesan upright bracket 18 which is also split and receives the thread edsleeve 19, which latter has the tapered bearing sleeve 20 projectingfrom the bracket and providing a bearing seat or pivotal support orconnection (Fig. 5) for the standard 11. The interior of the sleeve 19has a hexagonal opening which can be engaged by a suitable tool to turnthe sleeve and thereby take up the wear at the tapered bearing seat.Near its upper end the standard receives support from a fixed uprightframe 21, the latter provided with two feet or branches which have boxes22 journaled upon opposite ends of the trunnion bar 15. The two branchesof this frame converge and unite near the central plane of the machineand provide a vertical guideway or slot having beveled walls 23 (Figs.1, 1 and 8) on which there is guided for vertical sliding movement aguiding shoe pivotally connected to the standard. The guiding shoecomprises (see Figs. 4: and 8) a pair of beveled plates 24 boltedtogether by the clamping bolts 25 so that the shoe is readilydetachable, the two plates being preferably separated by shims, wherebythe shoe can be adjusted at all times to fit thebeveled guides. Thestandard is swiveled to the shoe by any suitable means such as the stud26 riveted to the standard and having the bearing portion 27 in theshoe.

The support 21 which provides the guide for the shoe may be tilted backfor adjustment about the trunnion bar so as to adjust the plane ofswinging movement, but is rigidly held in its adjusted position by oneThe trunnion box is so c0nor more brace members such as the adjustablebrace rod 28. lVith the standard con-' a. reciprocatory movement througha curved path as represented in Fig. 1 by merely re ciprocating thetrunnion box l l on the trunnion bar 15, the tool gang thereupon movingfrom the full line position shown in Fig. 1 to the dotted line positiontherein shown. The curved path described by the cutting edges of thetool gang (as shown in Fig. 1) is not a true arc, but flatter than thearc of a circle. Such flattened curve, however, is preferable, it beingfound that a more rapid cutting action can be secured through a blowwhich is slightly inclined to the bottom of the channel groove and notexactly perpendicular thereto. The shape of the support 21 and thelocation of the standard when it commences its swinging movement causesthe cutting tools to reach in under the overhanging side wall andsecures the full available reach of the tool gang in cutting the corner.

During the operation of the machine as described, the trunnion box isgiven a re ciprocatory movement on the trunnion bar by any suitablemeans, the truck driving mechanism being herein utilized for thatpurpose in conjunction with connections about to be described. To securethe movement of the trunnion box a power transmission chain 29, which(see Figs. 2, 5 and 6) isclamped to the trunnion box by means of anappropriately shaped cap member 30 screwed to the chain scat block 31 sothat one or more links of the chain are pinched and gripped between thecap piece and the seat.

In order to preserve substantially the same horizontal path of chainmovement irrespective of the tilting adjusting of the standard,provision is made for angular adjustment of the chain seat block 31about the trunnion block. To provide for this the chain seat block has-asegmental seat 32 on the trunnion block, the latter being provided witha T-slot 33 (see Fig. over which the chain seat block has slidingmovement. It is therefore possible to tip the standard and the trunnionblock back while preserving the same position of the chain seat block tothe chain, the block being slid along on the segmental seat and clampedto a dififerent position by means of the clamping bolts 35 which engagewith nuts 36 working in the T-slot The power transmission chain 29 whichis preferably endless extends substantially parallel with the trunnionblock 15 to and about idler sheaves 37 at opposite ends of the machineand thence to a driving sheave 38 at one end of the machine, there beingpreferably employed at some portion of the chain an idler sheave such asthe sheave 39 adjustably mounted so that the tension on the chain can beadjusted.

Referring now to the truck driving mechanism which is utilized to drivethe chain driving sheave 38, the same is of usual construction as to itsmain features, including an air or steam engine 40 arranged to drive thebeveled gear'al which is fast upon the main engine crank shaft e2. Thebeveled gear 11 meshes with similar but opposed beveled gears 13 and ll,the latter being loose upon the countershaft +15, but adapted to beseverally clutched to or unclutched therefrom by means of the slidingclutch members 46 and 47 of common construction. The latter areconnected to the forked arms 48 and 49 respectively, which are connectedto the slide shaft 50 operated by the clutch lever 51, so that bymovement of the clutch lever the countershaft may be moved in onedirection or reversed to turn in the opposite direction, or held atrest.

In the use of the machine as a common channeler the truck drivingmovement is transmitted from the counter-shaft 15 to the truck drivingshaft 52 by means of the pinion 53 fast on the countershaft 45, butmeshing with an idle gear 54, shown dotted in Fig. 9, which latterdrives the larger gear 55 fast upon the truck driving shaft 52. Thetruck driving shaft is provided at opposite ends with worms 56 whichmesh with worm gears 57, the latter secured to the driving axles so thatthrough the described mechanism a truck driving movement is impartedfrom the engine 40 in either direction to the truck wheels.

Vhen it is desired to swing the tool while cutting, the pinion 54, whichis removably mounted upon the stud 58 in the bracket 59, is removedtherefrom to disconnect the gears 53 and 55 and is applied to the shaft60, which is carried in the bracket 61 and has also fixed thereto thegear 62. The gear 62 meshes with a gear 63 mounted upon the sleeve shaftea, the latter arranged concen trio with the counter-shaft -15, butoperatively disconnected therefrom. The sleeve shaft 6st drives the gear65, the latter meshing with an idle gear 66 which in turn engages thegear 67 secured to the shaft 68. The driving movement is transmittedfrom the shaft 68 to the worm 69 and thence to the worm gear 70 andthereby to the driving sheave 38 to move the chain.

As the cut deepens the angular velocity of the swinging tool gang shouldbe decreased so that the lineal velocity of the cutting edges will notbe too great to roughen or coarsen the cut. I therefore preferablyprovide speed variation means between the source of power and theswinging mechanism so that the swinging movement of the tool gang slowsdown as the cut deepens.

This may be accomplished in various ways,

but herein I have provided a series of change gears of which the gear 67is one, so that by bringing the gears 67, 71, 72 and 73 successivelyinto engagement, the swinging movement of the tool gang may be varied.

To provide for shifting the gear 66 into engagement with the variouslydimensioned speed change gears, gears 66 and 65 are carried on a sleevedbracket 7 at which is adapted to be slid along to different positionsalong the sleeve shaft 6i and there clamped by the clamping bolt 7 5,the latter engaging the frame 76 which is swiveled for tipping movementabout the axis of the shaft 64:. This frame can be tipped to differentpositions to engage the gear 66 with the several gears 67, 71, 72 and 73by means of an arm 77 having the handle '78, the arm having a' clampingbolt 79 adapted to engage with the slot 80 formed in a lug 81 fixed onthe frame. The bracket 61, as well as the bracket 59 are both carried bythe tilting frame 7 6 so that the gear 54: is maintained in mesh withthe gear 53 to whatever position the frame may be adjusted.

The same mechanism for feeding the cutting appliances toward. or fromthe work may be employed in the operation of the machine as a cornercutter, as in its operation as an ordinary channeler.

Referring to Fig. 2, the truck driving shaft has loosely mounted thereontwo gears 82 and 83 which mesh with gears connected directly to thebeveled gears 43 and it re spectively. The gears may be clutched eitherone at will to a sleeve 84, also loose 'on the shaft 52, but carryingthe beveled gear 85 which meshes with the beveled gear 86 connected todrive the inclined feed screw shaft 87 (see Figs. 4 and The latter has atelescopic connection 88 to drive the beveled gear 89 meshing with thegear 90 which latter turns the feed screw 91 and feeds the cuttingappliances up or down on the standard. The sleeve 84: and gear 85 may beclutched to either gear 82 or 83 at will by means of the sliding clutchnembers 92 and 93, respectively, which are operated. by the slide rod'91 and lever 95. By moving the lever 95, therefore, the feed screw may beturned in either direction at will or held fixed. The feed screw shaft87 not only has a telescopic joint at 88, but is also provided withjoints at 96 and 97 which are connected to the gear 89 for universalmovement to permit the assumption by the gear 89 of all positionsrequisite for the swing ing movement indicated in Fig. 1, while at thesame time preserving the driving connection from the gear 86. Thisuniversal driving connection between the feed screw on the standard andthe feed screw driving mechanism on the truck is also preserved for allangles of inclination to which the standard may be adjusted bymeans ofan adjustable segmental bracket 98 (Fig. 5) on which the gear 86 isjournaled, such bracket being constructed to swivel about the truckdriving shaft 52 and maintain the gear 86 in mesh with the gear 85 underall conditions of adjustment. The bracket 98 may be adjusted to conformto an adjustment of the standard, being constructed to engage withcircular shaped guides on the bracket 99 and to be clamped thereon inany selected position of adjustment.

lVhile the truck may be moved, if desired, during the swinging movementof the tool, in the described embodiment of my invention, I preferablyclamp the same fast to the rails 4 and disconnect the truck drivingmechanism from the driving axles at such time as the machine is used asa swinging cutter. Any suitable means may be employed for this purpose,but herein I have shown rail clamps 100 provided at each corner of themachine in such position that when tightened they grip the flanges ofthe rails and hold the machine fast.

When the machine is employed as an ordinary channeler with the standardheld rigidly, it may be rigidly supported on the :t'rame as representedin dotted lines in Fig. l by a rearwardly extending brace 102 connectedto the opposite side of the truck and the second laterally extendingbrace 103 connected to the central part of the main fixed support 21.

It is to be understood that the invention herein described is notlimited as to its broad features to embodiment in track channelers or inchanneling machines of any specific type. Furthermore, while there isherein shown and described for purposes of illustration one specificembodiment, it is to be further understood that the latter is notlimited to the details of construction herein shown nor to theapplication of the invention herein illustrated, nor to the specificform of machine to which the same is shown as applied, but thatextensive deviations may be made therefrom without departing from thespirit of the invention.

Claims:

1. In a channeling machine, the combination with a main supportconsisting of a truck, a channeling tool, a second support on which thetool is pivoted, means for reciprocatively moving said second support onthe truck, and means connected to said tool to cause the said movementof said second support to impart a swinging movement to the tool.

2. In a channeling machine, the combination with a main supportconsisting of a truck, truck driving mechanism for propelling the truck,a tool, a second support to which the tool is pivotally attached, meansfor moving said second support on the truck for reciprocatively throughthe truck driving mechanism, and means connected to said tool to causesaid movement of said second support to impart a swinging movement tothe tool.

3. In a channeling machine, the combination with a movable main support,a tool, a second support on which the tool is pivoted, means forreciprocatively moving said second support on the main support, andmeans connected to the tool to cause the reciprocative movement of saidsupport to swing the tool thereon.

1-. In a channeling machine a support, a tool carrier consisting of astandard, a tool mounted thereon, a pivotal connection be tween saidstandard and said support, means for reciprocz tively moving saidpivotal connection on said support, and means connected to the said toolto cause the said movement of said connection to impart a swingingmovement to the tool.

5. In a channeling machine the combination with a main support, a toolcarrier consisting of a standard, a tool mounted on said standard, apivotal connection between said standard and said main support, meansfor moving said pivotal connection, and means for holding another partof said standard to cause the swinging of the tool during the movementof said pivotal connection.

6. In a channeling machine the combination with a support, a trunnionbar thereon, a trunnion box movable on said bar, a tool carriercomprising a standard having pivotal connection to the trunnion box,means moving said trunnion box on said trunnion bar, a sliding guide,fixed guideways therefor, and a pivotal connection between said standardand said sliding guide.

7. In a channeling machine, the combination with a main supportconsisting of a truck, a second support on the truck, a tool carrierpivotally mounted on said second support, and means for moving saidsecond support bodily on the truck and simultaneously moving saidcarrier about the support.

8. The combination with a channeling ma chine having a main support, asecond support, a tool carrier pivotally mounted there on, a tool, powerdriven means on the main support for reciprocatively moving the secondsupport on the main support, and means connected to the carrier to causethe said movement of said second support to swing the tool carrier.

9. In a channeling machine the combination with a support, a toolcarrier thereon, a pivotal movable connection for said carrier, meansfor reciprocatively moving said connection on the support relatively tothe work, and means for simultaneously holding said carrier fixed inrelation to the work at another point in its length to cause the tool toexecute a swinging movement.

10. In a channeling machine, the combination with a main support, a toolcarrier thereon, a movable support on the main support on which thecarrier is pivoted, powerdriven means for reciproca'tively moving saidmovable support on the main support and swinging the tool, and means foradjusting the plane of swinging movement.

11. In a channeling machine, the combination with a main supportconsisting of a truck, a channeling tool, a second support on which thetool is pivoted, and power driven means for reciprocatively moving saidsecond support longitudinally on the truck and simultaneously swingingthe tool.

12. In a channeling machine, the combination with a main support, of atool carrier, a pivot on which said carrier is held, means for movingsaid pivot bodily on the main support and for simultaneously moving thecarrier about the same.

18. In a channeling machine, a main support consisting of a truck, amotor, truck driving mechanism driven thereby, a tool carrier, a pivoton which the carrier is held, tool swinging mechanism, including meansfor moving said pivot on the truck and speed change gearing between saidmotor tion with a main support consisting of a truck, of a tool carrier,a pivotal connection for the tool carrier movable on the truck, meansfor moving the pivotal connection and means to restrain the movement ofthe v carrier at another point on the truck to cause the same to swingabout its pivot.

15. In a channeling machine, the combination with a main support, of atool carrier, an intermediate support on which the carrier is mountedfor swinging movement, means to move the last named support on the mainsupport, and means to restrain the tool carrier at another point on themain support to cause the same to swing as the intermediate support ismoved.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

HENRY H. MERCER.

Witnesses:

THOMAS B. BOOTH, ROBERT H. KAMMLER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

